28852407 has 12 divisors (see below), whose sum is σ = 42563040. Its totient is φ = 18825408.

The previous prime is 28852399. The next prime is 28852427. The reversal of 28852407 is 70425882.

It is a happy number.

It is not a de Polignac number, because 28852407 - 2³ = 28852399 is a prime.

It is a super-2 number, since 2×28852407² = 1664922779387298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28852427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33682 + ... + 34527.

It is an arithmetic number, because the mean of its divisors is an integer number (3546920).

Almost surely, 2^28852407 is an apocalyptic number.

28852407 is a deficient number, since it is larger than the sum of its proper divisors (13710633).

28852407 is a wasteful number, since it uses less digits than its factorization.

28852407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68262 (or 68259 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28852407 is about 5371.4436606931. The cubic root of 28852407 is about 306.7095861217.

The spelling of 28852407 in words is "twenty-eight million, eight hundred fifty-two thousand, four hundred seven".